Libxml2 Integer Overflow in xmlSAX2Characters() May Let Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1021238
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SecurityTracker URL: http://securitytracker.com/id?1021238
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CVE Reference: CVE-2008-4226
(Links to External Site)
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Date: Nov 17 2008
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Impact: Execution of arbitrary code via network, User access via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Version(s): 2.7.2 and prior versions
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Description: A vulnerability was reported in Libxml2. A remote user can cause arbitrary code to be executed on the target user's system.
A remote user can create specially crafted XML content that, when processed by the target application using libxml2, will trigger
an integer overflow in the xmlSAX2Characters() function and crash the target application or potentially execute arbitrary code on
the target system. The code will run with the privileges of the target application.
The vulnerability resides in 'SAX2.c'.
Drew
Yao from Apple Product Security reported this vulnerability.
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Impact: A remote user can create XML content that, when loaded by the target application, may execute arbitrary code on the target system.
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Solution: The vendor has issued a source code fix, available via SVN.
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Vendor URL: xmlsoft.org/ (Links to External Site)
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Cause: Boundary error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Mon, 17 Nov 2008 16:42:19 -0500
Subject: Libxml2
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An integer overflow flaw causing a heap-based buffer overflow was found in
the libxml2 XML parser. If an application linked against libxml2 processed
untrusted, malformed XML content, it could cause the application to crash
or, possibly, execute arbitrary code. (CVE-2008-4226)
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